Metla Instruments Full Line Catalog

Metlan Instruments is a leading Chinese manufacturer and integrator of flow measurement solutions, trusted by global clients for high and stable precision, long service life, and flexible customization at competitive prices. With over 20 years of expertise, our flow meters are widely used in industries such as oil and gas, power generation and chemical processing.

At Metlan, we do more than manufacture high-quality flow meters. As a top-tier OEM with over 20 years of experience, we also maintain long-term partnerships with other leading flow meter factories, which enables us to deliver a broader range of high performance flow meter solutions covering thermal mass, Coriolis, positive displacement, and low flow applications, to meet the diverse needs of our clients. We know how challenging finding the right flow meter or controller can be. Our 20+ years of flow measurement experience guarantees your success.

We’re also a trusted OEM partner, with over 20 years of experience supporting global clients with custom manufacturing, branding, and engineering integration. https://metlaninst.com/

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1. Metlan Instruments Full Line Catalog Your source of calibrated flow meters www.metlaninst.com Email: Support@metlaninst.com Whatsapp/Tel: +86-198-2540-9179 | +86-182-5189-2221
2. Bi-rotor PD Flow Meter Product Code: MT-ABR Features:  High accuracy up to ±0.1 %, high process pressure up to 110 bar (1595 psi)  Perfect flow meter for fuel and diesel oil  Stable in running with low voice  Good anti-interference performance and long service life  Strong applicability to viscosity changes Specifications: - Nominal Diameter Range: DN 15 to 400 - Accuracy: ±0.1 %; ±0.2 %; ±0.5 % - Repeatability: ±0.05 %; ±0.1 %; ±0.25 % - Measuring Range: 0.3 to 1800 m³/h - Max. Process Pressure: 110 bar (1595 psi) - Medium Temperature Range: Standard: (-20～+100) ℃, Optional: (-20～+250) ℃ - Ambient Temperature Range: Standard: (-20～+55) ℃, Optional: (-30～+70) ℃ - Outputs: 4-20 mA, Pulse - Digital Communication: Modbus/RS-485 (HART and others on request) - Power Supply: DC 12 to 24 V Bi-rotor PD Flow Meter (Mechanical) Product Code: MT-ABRM Features:  High accuracy up to ±0.1 %, high process pressure up to 110 bar (1595 psi)  Perfect flow meter for fuel and diesel oil  Stable in running with low voice  Good anti-interference performance and long service life  Strong applicability to viscosity changes Specifications: - Nominal Diameter Range: DN 15 to 400 - Accuracy: ±0.1 %; ±0.2 %; ±0.5 % - Repeatability: ±0.05 %; ±0.1 %; ±0.25 % - Measuring Range: 0.3 to 1800 m³/h - Max. Process Pressure: 110 bar (1595 psi) - Medium Temperature Range: Standard: (-20～+100) ℃, Optional: (-20～+250) ℃ - Ambient Temperature Range: Standard: (-20～+55) ℃, Optional: (-30～+70) ℃ - Outputs: 4-20 mA, Pulse - Digital Communication: Modbus/RS-485 (HART and others on request) - Power Supply: DC 12 to 24 V Oval Gear PD Flow Meter Product Code: MT-LC Features:  High-precision measurement with up to ±0.2% accuracy  Not sensitive to the viscosity change  Simple installation without requiring straight pipe runs  Smooth spiral rotor operation with minimal vibration for consistent performance Specifications: - Nominal Diameter Range: DN 10 to 200 - Accuracy: ±0.2 %; ±0.5 % - Repeatability: ±0.1 %; ±0.25 % - Measuring Range: 0.05 to 340 m³/h - Max. Process Pressure: 63 bar - Medium Temperature Range: Standard: (-20～+60) ℃, Optional: (-41～+60) ℃ - Ambient Temperature Range: Standard: (-10～+60) ℃, Optional: (-30～+70) ℃ - Outputs: 4-20 mA, Pulse - Digital Communication: Modbus/RS-485, HART - Power Supply: DC 12 to 24 V Low Flow PD Gear Flow Meter Product Code: MT-GF Features:  Designed for low flow liquids from 0.6 L/H  150:1 wide turndown ratio  High-precision measurement with up to ±0.5% accuracy  Capable of measuring highly corrosive medium including sulfuric acid, hydrofluoric acid, and other aggressive chemicals Specifications: - Accuracy: ±0.5 % - Repeatability: ±0.1 % - Measuring Range: 0.6 to 2000 l/h - Max. Process Pressure: Standard: 100 bar, Optional: 400 bar - Medium Temperature Range: Standard: (-40～+80) ℃, Optional: (-40～+200) ℃ - Ambient Temperature Range: (-40～+85) ℃ - Outputs: 4-20 mA, Pulse - Digital Communication: Modbus/RS-485, HART, GPRS, Bluetooth - Power Supply: DC 9 to 26 V Positive Displacement (PD) Flow Meters Thermal Mass Flow Meters
3. Insertion Thermal Mass Flow Meter Product Code: MT211x Features:  Suitable for pipes with diameters from DN20 to DN1000  Ultra-wide 1:2500 turndown ratio, the measuring range is from 0.1 Nm/s to 250 Nm/s.  Full-digital signal processing, higher accuracy, long-term stability. Fluids Measured: Compressed air, nitrogen, oxygen, Carbon dioxide & other non-condensing gases. Specifications: - Nominal Diameter Range: DN20 to DN1000 - Accuracy: Standard: ±(1.5% RD + 0.3% FS) , Optional: ±1% RD - Measuring Range: 0.1 to 63617 Nm³/h - Max. Process Pressure: 63 bar (913.74 psi) - Medium Temperature Range: -40 to 302°F (-40 to 150°C) - Ambient Temperature Range: -22 to 158°F (-30 to 70°C) - Outputs: 4-20 mA, Pulse - Digital Communication: Modbus/RS-485 (Standard), Wireless (optional) - Power Supply: DC 18 to 30 V Thermal Mass Flow Meter Product Code: MT212x Features:  Ultra-wide 1:2500 turndown ratio, the measuring range is from 0.1 Nm/s to 250 Nm/s.  Full-digital signal processing, higher accuracy, long-term stability. Fluids Measured: Compressed air, nitrogen, oxygen, Carbon dioxide & other non-condensing gases. Specifications: - Nominal Diameter Range: DN 15 to 80 - Accuracy: Standard: ±(1.5% RD + 0.3% FS) , Optional: ±1% RD - Measuring Range: 0.06 to 2171 Nm³/h - Max. Process Pressure: 63 bar (913.74 psi) - Medium Temperature Range: -40 to 302°F (-40 to 150°C) - Ambient Temperature Range: -22 to 158°F (-30 to 70°C) - Outputs: 4-20 mA, Pulse - Digital Communication: Modbus/RS-485 (Standard), Wireless (optional) - Power Supply: DC 18 to 30 V Insertion Explosion-proof Thermal Mass Flow Meter Product Code: MT211x-Ex Features:  Explosion-proof class: Ex db IIC T6 Gb / Ex tb IIIC T80°CDb.  Suitable for pipes with diameters from DN20 to DN1000  Ultra-wide 1:2500 turndown ratio, the measuring range is from 0.1 Nm/s to 250 Nm/s.  Full-digital signal processing, higher accuracy, long-term stability. Fluids Measured: Compressed air, nitrogen, oxygen, Carbon dioxide & other non-condensing gases. Specifications: - Nominal Diameter Range: DN20 to 1000 - Accuracy: Standard: ±(1.5% RD + 0.3% FS) , Optional: ±1% RD - Measuring Range: 0.1 to 63617 Nm³/h - Max. Process Pressure: 63 bar (913.74 psi) - Medium Temperature Range: --40 to 176°F (-40 to 80°C) - Ambient Temperature Range: -22 to 140°F (-30 to 60°C) - Outputs: 4-20 mA, Pulse - Digital Communication: Modbus/RS-485 (Standard), Wireless (optional) - Power Supply: DC 18 to 30 V Explosion-proof Thermal Mass Flow Meter Product Code: MT212x-Ex Features:  Explosion-proof class: Ex db IIC T6 Gb / Ex tb IIIC T80°CDb.  Ultra-wide 1:2500 turndown ratio, the measuring range is from 0.1 Nm/s to 250 Nm/s.  Full-digital signal processing, higher accuracy, long-term stability. Fluids Measured: Compressed air, nitrogen, oxygen, Carbon dioxide & other non-condensing gases. Specifications: - Nominal Diameter Range: DN 15 to 80 - Accuracy: Standard: ±(1.5% RD + 0.3% FS) , Optional: ±1% RD - Measuring Range: 0.06 to 2171 Nm³/h - Max. Process Pressure: 63 bar (913.74 psi) - Medium Temperature Range: --40 to 176°F (-40 to 80°C) - Ambient Temperature Range: -22 to 140°F (-30 to 60°C) - Outputs: 4-20 mA, Pulse - Digital Communication: Modbus/RS-485 (Standard), Wireless (optional) - Power Supply: DC 18 to 30 V Coriolis Mass Flow Meter W Shape Product Code: MTD-ACMW Features:  High accuracy up to ±0.1 %, Good reliability  Good zero-stability and anti-interference performance  No moving parts, no maintenance required Specifications: - Nominal Diameter Range: DN 8 to 250 - Accuracy: ±0.1 %; ±0.15 %; ±0.2 % - Repeatability: ±0.05 %; ±0.075 %; ±0.1 % - Measuring Range: 8-1500000 kg/h - Max. Process Pressure: 250 bar (3626 psi) - Medium Temperature Range: Integrate Type: (-50~+125)℃; Split Type: (-200~+350)℃ - Ambient Temperature Range: Standard: (-20～+55) ℃; Optional: (-30～+70) ℃ - Outputs: 4-20 mA, Pulse - Digital Communication: RS485 Modbus, HART - Power Supply: DC( 18~ 30)V, AC(85 ~ 250)V Coriolis Mass Flow Meters
4. Coriolis Mass Flow Meter C Shape Product Code: MTD-ACMC Features:  High accuracy up to ±0.1 %, Good reliability  Good zero-stability and anti-interference performance  No moving parts, no maintenance required Specifications: - Nominal Diameter Range: DN 50 to 100 - Accuracy: ±0.1 %; ±0.15 %; ±0.2 % - Repeatability: ±0.05 %; ±0.075 %; ±0.1 % - Measuring Range: 500-200000 kg/h - Max. Process Pressure: 250 bar (3626 psi) - Medium Temperature Range: Integrate Type: (-50~+125)℃; Split Type: (-200~+350)℃ - Ambient Temperature Range: Standard: (-20～+55) ℃; Optional: (-30～+70) ℃ - Outputs: 4-20 mA, Pulse - Digital Communication: RS485 Modbus, HART - Power Supply: DC( 18~ 30)V, AC(85 ~ 250)V Coriolis Mass Flow Meter / Controller Product Code: MTL20FE Features:  Designed for low flow gas / liquid measuring.  High precision, good repeatability. For liquids, the measurement accuracy can reach ± 0.25%; for gases, the measurement accuracy can reach ± 0.5%.  Turn Down Ratio: 50:1 for digital mass flow controller; 100:1 for digital mass flow meter.  It can measure high viscosity fluid and high density gas  Integrated PID controller to regulate flow rate Specifications: - Accuracy: Gas: ±0.5% F.S; Liquid: ±0.25% F.S - Measuring Range: 0 ~ (40g/h~1000kg/h) - Max. Process Pressure: 100 bar - Working Temperature Range: 0～70℃ - Outputs: 0～5V, 4-20mA, 1～5V - Digital Communication: RS232/485， MODBUS protocol - Power Supply: 24VDC、±15VDC Thermal Gas Mass Flow Meter / Controller Product Code: MTL20FD Features:  Designed for low flow gas measuring  Turn Down Ratio: 50:1 for digital mass flow controller; 100:1 for digital mass flow meter  Response Time: mass flow controller<0.2s; mass flow meter <0.1s  Integrated PID controller to regulate flow rate  Directly measuring mass flow rate  Suitable for various high and low pressure pipelines Specifications: - Accuracy: ± 0.5% F.S; ± 1% F.S - Measuring Range: 02SCCM～6000SLM - Max. Process Pressure: 100 bar - Working Temperature Range: 0～50℃ - Outputs: 0～5V, 4-20mA, 1～5V - Digital Communication: RS232/485， MODBUS protocol，PROFIBUS protocol - Power Supply: 24VDC、±15VDC Differential Pressure Gas Mass Flow Meter / Controller Product Code: MTL20FC Features:  Designed for low flow gas measuring  Turn Down Ratio: 50:1 for digital mass flow controller; 100:1 for digital mass flow meter  Integrated PID controller to regulate flow rate  Directly measuring mass flow rate  No preheating required, no response lag during measurement Specifications: - Accuracy: ± 0.5% F.S; ± 1% F.S - Measuring Range: 2SCCM～3000SLM - Max. Process Pressure: 30 bar - Working Temperature Range: 10～50℃ - Outputs: 0～5V, 4-20mA, 1～5V - Digital Communication: RS232/485， MODBUS protocol - Power Supply: 24VDC、±15VDC Electromagnetic Flow Meters Low Flow Mass Flow Meters / Controllers
5. Mag Meter For Water and Wastewater Product Code: MTF-W Features:  PU, Neoprene or PTFE liner: excellent chemical resistance  Wide range of electrode materials  No moving parts, no wear, no pressure loss  The measuring principle is virtually independent of pressure, density, temperature and viscosity Fluids Measured: All simple water and wastewater applications Specifications: - Nominal Diameter Range: DN20 to 3000 - Accuracy: ±0.2 %; ±0.5 % - Repeatability: ±0.1 %; ±0.25 % - Measuring Range: 1 to 125000 m³/h - Max. Process Pressure: 100 bar (1450.38 psi) - Medium Temperature Range: -40 to 302°F (-40 to 150°C) - Ambient Temperature Range: -13 to 140°F (-25 to 60°C) - Outputs: 4-20 mA, Pulse - Digital Communication: RS-485, Hart - Power Supply: DC 24 V; AC 100 to 240 V Remote Mag Meter Product Code: MTF-F-200 Features:  Wide range of liners and electrode materials  No moving parts, no wear, no pressure loss  The measuring principle is virtually independent of pressure, density, temperature and viscosity Fluids Measured: Conducitive applications with clean, aggressive or abrasive liquids Specifications: - Nominal Diameter Range: DN15 to 3000 - Accuracy: ±0.2 %; ±0.5 % - Repeatability: ±0.1 %; ±0.25 % - Measuring Range: 0.3 to 125000 m³/h - Max. Process Pressure: 100 bar (1450.38 psi) - Medium Temperature Range: -40 to 356°F (-40 to 180°C) - Ambient Temperature Range: -13 to 140°F (-25 to 60°C) - Outputs: 4-20 mA, Pulse - Digital Communication: RS-485, Hart - Power Supply: DC 24 V; AC 100 to 240 V Insertion Mag Meter Product Code: MTF-I Features:  Suitable for pipes with diameters from DN100 to DN3000  No moving parts, no wear, no pressure loss  The measuring principle is virtually independent of pressure, density, temperature and viscosity Fluids Measured: Conducitive applications with clean, aggressive or abrasive liquids Specifications: - Nominal Diameter Range: DN100 to 3000 - Accuracy: ±1.5 % - Repeatability: ±0.5 % - Measuring Range: 16 to 125000 m³/h - Max. Process Pressure: 25 bar (362.6 psi) - Medium Temperature Range: < 176°F （80°C） - Ambient Temperature Range: -13 to 140°F (-25 to 60°C) - Outputs: 4-20 mA, Pulse - Digital Communication: RS-485, Hart - Power Supply: DC 24 V; AC 100 to 240 V Battery Powered Mag Meter Product Code: MTF-B Features:  Wide range of liners and electrode materials  No moving parts, no wear, no pressure loss  The measuring principle is virtually independent of pressure, density, temperature and viscosity Fluids Measured: Conducitive applications with clean, aggressive or abrasive liquids Specifications: - Nominal Diameter Range: DN10 to 100 - Accuracy: ±0.5 % - Repeatability: ±0.25 % - Measuring Range: 0.15 to 9000 m³/h - Max. Process Pressure: 100 bar (1450.38 psi) - Medium Temperature Range: -13 to 300°F (-25 to 150°C) - Ambient Temperature Range: -13 to 140°F (-25 to 60°C) - Outputs: 4-20 mA, GPRS - Power Supply: Lithium Battery Mag Meter For Low Conductivity Liquids Product Code: MTF-C Features:  Available for low conductivity liquids ≥3 μS/cm  Wide range of liners and electrode materials  No moving parts, no wear, no pressure loss  The measuring principle is virtually independent of pressure, density, temperature and viscosity Fluids Measured: For low conductivity liquids ≥3 μS/cm Specifications: - Nominal Diameter Range: DN25 to 3000 - Accuracy: ±0.5 %; ±1 % - Repeatability: ±0.16 %; ±0.33 % - Measuring Range: 1 to 125000 m³/h - Max. Process Pressure: 40 bar (580.15 psi) - Medium Temperature Range: -40 to 356°F (-40 to 180°C) - Ambient Temperature Range: -13 to 140°F (-25 to 60°C) - Outputs: 4-20 mA, Pulse - Digital Communication: RS-485, Hart - Power Supply: DC 24 V; AC 100 to 240 V
6. Mag Meter For Slurry Product Code: MTF-S Features:  PU, PFA, ETFE or FEP liner: excellent chemical and abrasion resistance  Wide range of electrode materials  No moving parts, no wear, no pressure loss  The measuring principle is virtually independent of pressure, density, temperature and viscosity Fluids Measured: Specially designed for Slurry Specifications: - Nominal Diameter Range: DN80 to 900 - Accuracy: ±0.2 %; ±0.5 % - Repeatability: ±0.1 %; ±0.25 % - Measuring Range: 9 to 11500 m³/h - Max. Process Pressure: 63 bar (913.74 psi) - Medium Temperature Range: -40 to 356°F (-40 to 180°C) - Ambient Temperature Range: -13 to 140°F (-25 to 60°C) - Outputs: 4-20 mA, Pulse - Digital Communication: RS-485, Hart - Power Supply: DC 24 V; AC 100 to 240 V Clamped Sanitary Mag Meter Product Code: MTF-A Features:  PFA liner: certified for hygienic applications  Wide range of electrode materials  No moving parts, no wear, no pressure loss  The measuring principle is virtually independent of pressure, density, temperature and viscosity Fluids Measured: Standard hygienic applications Specifications: - Nominal Diameter Range: DN15 to 150 - Accuracy: ±0.2 %; ±0.5 % - Repeatability: ±0.1 %; ±0.25 % - Measuring Range: 0.3 to 300 m³/h - Max. Process Pressure: 40 bar (580.15 psi) - Medium Temperature Range: -40 to 356°F (-40 to 180°C) - Ambient Temperature Range: -13 to 140°F (-25 to 60°C) - Outputs: 4-20 mA, Pulse - Digital Communication: RS-485, Hart - Power Supply: DC 24 V; AC 100 to 240 V Vortex Flow Meter Product Code: LUGBMT-100 Features:  Suitable for measuring the flow of liquids, gases, and steam.  Wide temperature and pressure range  Available in inline and insertion models, allowing flexibility in installation. Specifications: - Nominal Diameter Range: DN 15 to 300 - Accuracy: ±1 % - Repeatability: ±0.33 % - Measuring Range: Liquid: 0.8 to 3500 m³/h; Steam, gas: 5 to 18000 m³/h - Max. Process Pressure: 100 bar (1450 psi) - Medium Temperature Range: Standard: –40 to +260 °C (–40 to +480 °F); Optional: –200 to +400 °C (–328 to +750 °F) - Ambient Temperature Range: -35~60℃ - Outputs: 4-20 mA, Pulse - Digital Communication: RS485 (Others on request) - Power Supply: DC 12 to 24 V, 3.6V Lithium battery Vortex Meter with Temperature and Pressure Compensation Product Code: LUGBMT-C Features:  Suitable for measuring the flow of liquids, gases, and steam.  Wide temperature and pressure range  Compact all-in-one device integrated with temperature and pressure sensor Specifications: - Nominal Diameter Range: DN 15 to 300 - Accuracy: ±1 % - Repeatability: ±0.33 % - Measuring Range: Liquid: 0.8 to 3500 m³/h; Steam, gas: 5 to 18000 m³/h - Max. Process Pressure: 100 bar (1450 psi) - Medium Temperature Range: Standard: –40 to +260 °C (–40 to +480 °F); Optional: –200 to +350 °C (–328 to +660 °F) - Ambient Temperature Range: -35~60℃ - Outputs: 4-20 mA, Pulse - Digital Communication: RS485 (Others on request) - Power Supply: DC 12 to 24 V, 3.6V Lithium battery Vortex Flow Meter for High Pressure Product Code: LUGBMT-P Features:  Specially designed for high process pressure up to 250 bar  Suitable for measuring the flow of liquids, gases, and steam.  Wide temperature and pressure range Specifications: - Nominal Diameter Range: DN 15 to 300 - Accuracy: ±1 % - Repeatability: ±0.33 % - Measuring Range: Liquid: 0.8 to 3500 m³/h; Steam, gas: 5 to 18000 m³/h - Max. Process Pressure: 250 bar (3625 psi) - Medium Temperature Range: Standard: –40 to +260 °C (–40 to +480 °F); Optional: –200 to +350 °C (–328 to +660 °F) - Ambient Temperature Range: -35~60℃ - Outputs: 4-20 mA, Pulse - Digital Communication: RS485 (Others on request) - Power Supply: DC 12 to 24 V, 3.6V Lithium battery Vortex Flow Meters
7. Vortex Flow Meter for High Temperature Medium Product Code: LUGBMT-H Features:  For high temperature applications up to +400°C / +750°F  Suitable for measuring the flow of liquids, gases, and steam.  Wide temperature and pressure range Specifications: - Nominal Diameter Range: DN 15 to 300 - Accuracy: ±1 % - Repeatability: ±0.33 % - Measuring Range: Liquid: 0.8 to 3500 m³/h; Steam, gas: 5 to 18000 m³/h - Max. Process Pressure: 100 bar (1450 psi) - Medium Temperature Range: –200 to +400 °C (–328 to +750 °F) - Ambient Temperature Range: -35~60℃ - Outputs: 4-20 mA, Pulse - Digital Communication: RS485 (Others on request) - Power Supply: DC 12 to 24 V, 3.6V Lithium battery High Accuracy Liquid Turbine Flow Meter Product Code: LWGYMT-AJWL Features:  High accuracy up to ±0.2 %, with good repeatability  1:20 turndown ratio  Space-saving structure with DN0.5 minimum bore size Specifications: - Nominal Diameter Range: DN 0.5 to 300 - Accuracy: ±0.2 %; ±0.5 % - Repeatability: ±0.1 % - Measuring Range: 0.004 to 1800 m³/h - Max. Process Pressure: 350 bar - Medium Temperature Range: -196 TO 180 °C (−320.8 to +356 °F) - Ambient Temperature Range: -35~60℃ - Outputs: 4-20 mA, Pulse - Digital Communication: RS485 (Others on request) - Power Supply: DC 12 to 24 V, 3.6V Lithium battery High Accuracy Gas Turbine Flow Meter Product Code: LWGYMT-ES Features:  High accuracy up to ±1 %  Temp. & pressure compensation.  Segment LCD, displays normally at -30℃  Simultaneous display flow rate, total flow volume, pressure & temp. Specifications: - Nominal Diameter Range: DN 25 to 400 - Accuracy: ±1.0%; ±1.5% - Repeatability: ±0.15%; ±0.5% - Measuring Range: 4 to 13000 m³/h - Max. Process Pressure: 63 bar (913 psi) - Medium Temperature Range: --25°C~+55°C (–13 to +131 °F) - Ambient Temperature Range: -25~60℃ - Outputs: 4-20 mA, Pulse - Digital Communication: Modbus RS485 (Others on request) - Power Supply: DC 5 to 24 V, 3.6V Lithium battery Ultrasonic Gas Flow Meter Product Code: MTS-LYNSB Features:  High accuracy for gas up to ±0.5%  No moving parts, no presure loss, no line obstructions  No lubrication or periodic maintenance  Wide 100:1 turndown ratio  Bi-directional capability Specifications: - Nominal Diameter Range: DN 25 to 400 - Accuracy: ±0.5%; ±1%; ±1.5% - Repeatability: ±0.1%; ±0.2%; ±0.3% - Measuring Range: 1 to 11000 m³/h - Max. Process Pressure: 420bar (6090psi) - Medium Temperature Range: ≤65 °C (149 °F) - Ambient Temperature Range: -25 °C to +55 °C (-13 °F to 131 °F) - Outputs: 4-20 mA, Pulse - Digital Communication: RS-485 (Modbus RTU） - Power Supply: DC 12-32V Turbine Flow Meters Other Gas Flow Meters
8. Pitot Tube Gas Flow Meter Product Code: MTKB-201x Features:  Applicable to the measurement of dirty and wet air  Online auto-calibration reduces data drift  High sensitivity, the lower limit is down to 5 Nm/s  1:60 wide turndown ratio  Bidirectional flow measurement Specifications: - Nominal Diameter Range: DN 25 to 1000 - Accuracy: ±1% RD; ±1.5% RD + 0.3% FS - Max. Process Pressure: 17 bar (246.56 psi) - Medium Temperature Range: -40 TO 150 °C (–40 to +302 °F) - Ambient Temperature Range: -20℃~60℃ - Outputs: 4-20 mA, Pulse - Digital Communication: Modbus RTU (RS485)